lib/axlsx/stylesheet/num_fmt.rb in axlsx-2.0.1 vs lib/axlsx/stylesheet/num_fmt.rb in axlsx-2.1.0.pre

@@ -68,12 +68,10 @@
 
     # Serializes the object
     # @param [String] str
     # @return [String]
     def to_xml_string(str = '')
-      str << '<numFmt '
-      serialized_attributes str
-      str << '/>'
+      serialized_tag('numFmt', str)
     end
 
   end
 end